McAfee M-1250 Product Guide - Page 22

4 Attaching cables to the Sensor Cable the Sensor to monitor in in-line mode Table 4-1 Default Monitoring port speed settings Monitoring Ports Operating Mode Speed/Duplex Setting 10/100/1000 ports SPAN Auto-negotiation is OFF; Speed and Duplex are configurable Tap Auto-negotiation is ON; Speed is configurable; Duplex is always half In-Line Auto-negotiation is OFF; Speed and Duplex are configurable Cable types for routers, switches, hubs, and PCs This section describes the types of cables that you require to connect the Sensor to other network devices: • Use a crossover Ethernet RJ45 cable to connect a router port to 10/100/1000 Monitoring ports. • Use a straight-through Ethernet RJ45 cable to connect a switch/hub port to 10/100/1000 Monitoring ports. • Use a crossover Ethernet RJ45 cable to connect a router port to PC to the Sensor Management port. You should also use a crossover Ethernet RJ45 cable to connect a PC to the Sensor monitoring port. Cable the Sensor to monitor in in-line mode In-Line mode requires that you use a pair of Sensor ports as described in the section, How to use peer ports. Cabling Sensors for in-line mode requires a brief network interruption as you insert it in the flow of network traffic. To avoid extended network downtime, you should cable a Sensor for in-line mode after you have completed all other configuration tasks. In case the Sensor fails, the Sensor's internal 10/100/1000 ports fail-open or fail-close, depending on how the ports are configured. Note that in M-1250/1450 Sensors, dongles are not required for fail-close operation. The Sensor 10/100/1000 ports support Auto-MDIX. Task 1 Plug a Cat 5/Cat 5e cable into a monitoring port, for example port 1A. See Cable types for routers, switches, hubs, and PCs to determine which cable type to use with which type of network device. 2 Plug a Cat 5/Cat 5e cable into the corresponding peer port. If you had used 1A in step 1, then the corresponding peer port is 1B. 3 Connect the other end of each cable to the network devices that you want to monitor. For example, if you plan to monitor traffic between a switch and a router, connect the cable connected to 1A to the switch and the one connected to 1B to the router. See also Cable types for routers, switches, hubs, and PCs on page 22 How to use peer ports on page 21 22 McAfee® Network Security Platform M-1250/M-1450 Sensor Product Guide